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COMPARATIVE EFFECTIVENESS OF DOMESTIC AND FOREIGN LUBRICATING ADDITIVES FOR DRILLING INTRODUCED TO CLAY AND BIOPOLYMER DRILLING MUDS
1. DRILLING MUD COMPOSITIONS
1.1.
Clay drilling mud:
1
fresh industrial water;
2
soda ash – 0,3%;
3
Kuganak gel powder – up to r = 1,15 g/cm3;
4
condensed sulphite liquor -
3%.
1.2.
Mineralized starch-biopolymer drilling mud (MSBPDM):
5
fresh industrial water;
6
calcium chloride up to r = 1,15 g/cm3;
7
starch reagent – 3,0%;
8
xanthan gum – 0,1%;
9
carbonate weighting agent – 3%.
2. LABORATORY ANALYSIS CONDITIONS
2.1. Exposition – 3 minutes;
2.2. Rotation speed – 3000 rpm;
2.3.
Quantity of lubricant added – 0.5% over volume of drilling mud.
Comparative operational efficiency of popular domestic and foreign lubricating additives introduced to clay drilling mud
Table ¹ 1
|
# |
Solution
characteristics |
Initial
fluid |
«Reapen 1408»
Kazan |
Smad
ASN
Kazan |
Smabur 50
Kazan |
SBD-
FG
Ufa |
SBD-
TM
Ufa |
DSB-
4TT
Ufa |
SAMD-1
Ufa |
FK 2000(+)
Krasnodar |
S-lub/Nord
Moscow |
BIT
LUB
export |
Dreel-
Free |
|
|
Libricating agent content (%) |
- |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
|
1 |
Density (before high-speed stirring), g/cm3 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
1,15 |
|
2 |
Density (after high-speed stirring), g/cm3 |
1,06 |
1,15 |
1,00 |
1,13 |
0,96 |
1,00 |
0,96 |
0,93 |
1,03 |
<0,8 |
1,11 |
1,12 |
|
3 |
Relative viscosity, sec |
27 |
27 |
26 |
27 |
27 |
27 |
29 |
57 |
30 |
35 |
27 |
27 |
|
4 |
Water loss,
cm3/30
minutes |
6,0 |
5,5 |
5,5 |
5,5 |
6,0 |
6,0 |
6,0 |
6,5 |
6,0 |
7,0 |
6,0 |
6,0 |
|
5 |
Friction factor |
31,5 |
10,1 |
4,7 |
7,9 |
12,9 |
11,0 |
16,7 |
12,3 |
11,3 |
25,5 |
22,1 |
18,9 |
|
6 |
Friction
factor decrease, % |
- |
68,0 |
85,0 |
75,0 |
59,0 |
65,0 |
47,0 |
61,0 |
64,0 |
19,0 |
30,0 |
40,0 |
Comparative operational efficiency of popular domestic and foreign lubricating additives introduced to mineralized starch-biopolymer drilling mud (MSBPDM)
Table ¹ 2
|
# |
Solution
characteristics |
Initial
fluid |
«Reapen 1408»
Kazan |
Smad
ASN
Kazan |
Smabur 50
Kazan |
SBD-
FG
Ufa |
SBD-
TM
Ufa |
DSB-
4TT
Ufa |
SAMD-1
Ufa |
FK 2000(+)
Krasnodar |
S-lub/Nord
Moscow |
BIT
LUB
export |
Dreel-
Free |
|
|
Libricating agent content (%) |
- |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
0,5 |
|
1 |
Density (before high-speed stirring), g/cm3 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
1,17 |
|
2 |
Density (after high-speed stirring), g/cm3 |
1,15 |
1,17 |
1,10 |
1,15 |
1,10 |
1,09 |
1,11 |
1,06 |
1,11 |
0,91 |
1,13 |
1,14 |
|
3 |
Relative viscosity, sec |
32 |
32 |
30 |
31 |
32 |
32 |
31 |
45 |
40 |
41 |
32 |
32 |
|
4 |
Water loss,
cm3/30
minutes |
3,0 |
2,5 |
2,5 |
2,5 |
3,0 |
3,0 |
3,0 |
3,5 |
3,0 |
4,0 |
3,0 |
3,0 |
|
5 |
Friction factor |
23,5 |
10,6 |
9,4 |
10,1 |
13,2 |
12,0 |
13,9 |
11,8 |
16,4 |
18,1 |
17,6 |
16,2 |
|
6 |
Friction factor
decrease, % |
- |
55,0 |
60,0 |
57,0 |
44,0 |
49,0 |
41,0 |
50,0 |
30,0 |
23,0 |
25,0 |
31,0 |
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